assertEquals(null, bothNullResponse.getFileId());
        assertEquals(null, bothNullResponse.getFileName());
    }

    @Test
    @DisplayName("Test multiple close flags combinations")
    void testMultipleCloseFlagsCombinations() {
        // Test combining multiple flags
        int combinedFlags = 0x0003; // Multiple flags set
        request.setCloseFlags(combinedFlags);

        byte[] buffer = new byte[256];